December weather forecast
Triangle, NY

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Weather in December

December, the first month of the winter in Triangle, is also an icy month, with temperature in the range of an average high of 33.3°F (0.7°C) and an average low of 23.5°F (-4.7°C).

Temperature

Observing a mild shift, the average high-temperature during December reduces from November's chilly 43.3°F (6.3°C) to a cold 33.3°F (0.7°C). Throughout the nights in December, an average low-temperature of 23.5°F (-4.7°C) is noted.

Humidity

In Triangle, the average relative humidity in December is 87%.

Rainfall

In Triangle, in December, it is raining for 11.8 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, in Triangle, there are 175.2 rainfall days, and 33.15" (842mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, in Triangle, it is snowing for 16.1 days. Throughout December, 7.64" (194mm) of snow is accumulated. In Triangle, during the entire year, snow falls for 84.3 days and aggregates up to 40.28" (1023mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:31 pm. On the last day of December, in Triangle, sunrise is at 7:32 am and sunset at 4:41 pm EST.

Sunshine

The average sunshine in December is 2.8h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 1 in December translates into these instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

How cold is December in Triangle?

The average high-temperature, in December, in Triangle, is 33.3°F (0.7°C), while the average low-temperature is 23.5°F (-4.7°C).

What is the average humidity in December in Triangle?

In Triangle, the average relative humidity in December is 87%.

How many days does it rain in December in Triangle?

In December, in Triangle, the rain falls for 11.8 days. Throughout December, 2.68" (68mm) of precipitation is accumulated.

How much does it snow in Triangle in December?

In Triangle, New York, in December, snow falls for 16.1 days, with typically accumulated 7.64" (194mm) of snow.

What is the month with the shortest days in Triangle?

The month with the shortest days in Triangle is December, with an average of 9h and 6min of daylight.

What is the average length of the day in December in Triangle?

In December, the average day length is 9h and 8min.

What time are sunrise and sunset in December in Triangle?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:31 pm. On the last day of the month, in Triangle, sunrise is at 7:32 am and sunset at 4:41 pm EST.

How many hours of sunshine does Triangle have in December?

In Triangle, New York, the average sunshine duration in December is 2.8h.

What are the months with the lowest UV index in Triangle?

The months with the lowest UV index in Triangle, New York, are January, February and December, with an average maximum UV index of 1.

What is the UV index reading in December in Triangle?

In Triangle, New York, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Triangle, NY

Average temperature in December - Triangle, NY
  • Average high temperature in December: 33.3°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in December: 23.5°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure in December
Triangle, NY

Average pressure in December - Triangle, NY
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Triangle, NY

Average wind speed in December - Triangle, NY
  • Average wind speed in December: 9.1mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in December
Triangle, NY

Average humidity in December - Triangle, NY
  • Average humidity in December: 87%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, May, June and July (80%).

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Average rainfall in December
Triangle, NY

Average rainfall in December - Triangle, NY
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is August (3.27").
The driest months (with the least rainfall) are January and September (2.36").

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Average rainfall days in December
Triangle, NY

Average rainfall days in December - Triangle, NY
  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (8.2 days).

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Average snowfall in December
Triangle, NY

Average snowfall in December - Triangle, NY
  • Average snowfall in December: 7.64"

The month with the highest snowfall is February (8.62").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Triangle, NY

Average snowfall days in December - Triangle, NY
  • Average snowfall days in December: 16.1 days

The month with the highest number of snowfall days is January (19.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Triangle, NY

Average daylight in December / Average sunshine in December - Triangle, NY
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

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Average sunshine days in December
Triangle, NY

Average sunshine days in December - Triangle, NY
  • Average sunshine days in December: 7.4 days

The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is February (4.8 days).

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Average UV index in December
Triangle, NY

Average UV index in December - Triangle, NY
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

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Average cloud cover in December
Triangle, NY

Average cloud cover in December - Triangle, NY
  • Average cloud cover in December: 72

The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 39).

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Average visibility in December
Triangle, NY

Average visibility in December - Triangle, NY
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

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Triangle, New York, USA

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